I. A little piece of brass used as a coin (an old word): in mancipando cum dicitur: Rudusculo libram ferito, asse tangitur libra, Fest. s. v. rodus, p. 265 Müll.; v. raudus.— Hence,
II. Transf., a small sum of money: “de raudusculo Numeriano multum te amo,” in regard to that little debt of Numerius, Cic. Att. 7, 2, 7: “de raudusculo quod scribis,” id. ib. 4, 8, a, § 1.